merritt



2 Sheets-Sheet F. s. MERRITT.

Range.

Patented .lamlv 21, 1862.

UNITED STATES F. S. MERRITT, OF

' cooKING Specicaton of Letters Patent No.

To all whom it may concern: v

Be it known that I, F. S. MERRITT, of the city, county, and State of New York, have invented a new and useful Improvement in Cooking-Ranges; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in whichm Figure 1, is a vertical sect-ion of a cooking range with my invention applied to it taken in the line Fig. 2. Fig. 2, a horizont-al section of the same taken in the line y, y, Fig. 2. Fig. 3, a detached vertical section of my invention taken in the line a, a, Fig. 2. Fig. 4, a vertical section of one side of the range taken in the line a, a, Fig. l. Figs. 5, and 6, are horiZont-alsections of a portion of the invention taken respectively in the lines b o c Fig. 1.

Similar letters of reference indicate corresponding parts in the several figures.

This invention consists in arranging in the back part of the lire-chamber of a cooking range a rotating cylinder or frustum of a cone, one portion or side of which is of fire brick or other equivalent substance or material and the opposite portion or side forming a water-back, an air heating chamber being between the ire-brick and waterback; wherebyeither the lire-brick or Water back may be made to form the back of the fire-chamber as may be desired, and an air heating chamber obtained which may be constantly used or in other words, used in either of the two portions of the cylinder or :trustum of a cone.

The invention also consists of a peculiar means employed for operating the cylinder or frustum of a cone as well as a novel arrangement for automatically supplying the water-back with a flow of water and cutting of the same as hereinafter described.

To enable those skilled in the art to fully understand and construct my invention I will proceed to describe it.

A, representsvthe fire-chamber of a cooking range which may be constructed and arranged in any proper way and lined at its sides with {ire-brick B, as usual.

The fire-brick C, which at certain times forms the back of the fire-chamber is of convex form and is a vertical portion ot a frustum of a cone D, as shown clearly in Figs. 1 and 2. The opposite portion of D,

PATENT OFFICE.

NEW YORK, N. Y.

-RANGEL 34,212, dated January 21, 1862.

forms a water-back E, shown clearly in Figs. 1 and 2.

F, is a chamber between the fire-brick C, 'and water-back E. This chamber has openings a, at its top and bottom for the air to lower part of a compartment G, at the back of the fire-chamber and the heated air passing out through the upper part of said chamber as indicated by the arrows l.

The frustum D, works on trunnions LX LX which are tubular and communicate with the water-back E. The trunnions 0.x, externally are of conical form and are iitted in sockets'bX, 6X, which have tubes c, c respectively attached to them. Such trunnion ax, has two passages CZ cl made laterally in it at right angles and the sockets bx o, have similar openings or passages c, e the passages e, communicating with the tubes c c. The frustum D, has Vertical pins f, attached to its bottom said pins being in a curved line concentric with the bottom. These pins f, gear into a screw H, which is on a rod I, that passes obliquely through the range at one side, said rod I, having a crank g, on its front endat one side of the frustum D, there are attached two cleats or ribs L, h, which serve as stops.

The operation is as follows: The operator or attendant by turning the rod I, may turn the frustum D, so that either the firebrick C, or water-back -E, may form the back of the tire-chamber A.l When the water-back E, forms the backof the firechamber there is a iiow of water upward through the water-back as indicated by arrows 2, as the tubes c, c are in line with the holes c of the sockets bx, b, and the holes e, are in line with the holes or passages d', in the trunnions ax; when however the frustum D, is turned so that the fire-back C, forms the back of the fire-chamber, the passages el, in the trunnions are in line with the holes or openings e, in the sockets b", bx", and the water escapes from the waterback through the opening e, in the lower socket Z2, as indicated by arrows 3, Fig. 6.

Thus it will be seen that the flow of water through the water-back E, is stopped and started automatically. The air heating chamber F, not only heats air for warming other apartments than that in which the range is placed but also serves to isolate the water-back from the iire, when the former is turned out from the latter and the fireis hollow constructed of sheet-metal and The,invention is extremely simple and etioient and is attended with a triling eX- pense in construction. i

Having thus described my invention what I claim as new and desire to secure by Letters Patent; is.

l. The combination of a lire-brick C, and 'Water-back E, arranged at the back part of the fire-chamber A, ota cooking range so as to form a cylinder or a frustum of a cone and be rotated so that either the fire-brick or the Water-hack may form the back of the re-chamber as desired.

2. The air heating chamber F5 interposed between the fire-brick C, and Water-back E, When the same are suspended and made to rotate as and for the purpose specified.

3. The tubular trunnions a", provided With passages o?, d in combination With the sockets bx, bx", provided with the holes or openings e, e, and arranged and applied to the rotating' Water back E, as shown to automatically stop and start the How of Water through the Water back E, as set forth.

4. Rotating the frustum D by means of the pins or teeth f, and screw H, when the latter is placed or formed on a rod I, which passes through the range at one side of the fire-chamber so that the frnstum can be turned by the operator or attendant at the front of the stove.

F. S. MERRITrp Witnesses:

CHARLES HOLDEN7 JAMES LAIRD. 

